Researchers in Japan showed that growing Eu-doped GaN on a semipolar GaN plane selectively forms highly efficient Eu luminescent centers while suppressing inefficient Eu clusters. The approach increased room-temperature red emission by 3.6 times, reduced efficiency droop, and points to brighter, wavelength-stable red LEDs for monolithically integrated full-color micro-LED displays using the GaN materials platform.

Biologists have long puzzled over why organisms with similar numbers of protein-coding genes can differ so dramatically in nervous system complexity. New research points to a potential link between the expanding diversity of RNA-binding proteins, which shape how genetic instructions are processed, and greater brain sophistication.

A computational method combining generative AI with atomistic simulations can identify promising platinum alloy catalyst structures for hydrogen fuel cells, report researchers from Science Tokyo. Their approach addresses a longstanding challenge in catalyst design and consistently produces high-performing candidates from several material combinations.

As disasters increasingly disrupt lives through displacement, conflict, and climate-related emergencies, addressing long-term mental health recovery remains a major challenge. A correspondence from Juntendo University discusses that, while acute symptom assessment remains important, disaster psychiatry may benefit from a community-led approach to care. The authors discuss the importance of ibasho (community spaces of belonging and social purpose) and suggest that rebuilding routines, roles, and neighborhood connections may support long-term recovery and resilience.

Implanting a device into the deep temporal cortex of a mouse without damaging the brain has long been a major challenge in neuroscience research. A team at Meijo University and Dokkyo Medical University has now overcome this barrier with a flexible sheet thinner than a human hair that slides into place without penetrating the brain.